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Welcome to the Classes and Methods MCQs Page

Dive deep into the fascinating world of Classes and Methods with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Classes and Methods, a crucial aspect of Java Programming. In this section, you will encounter a diverse range of MCQs that cover various aspects of Classes and Methods, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Java Programming.

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Check out the MCQs below to embark on an enriching journey through Classes and Methods. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Java Programming.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Classes and Methods. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Classes and Methods MCQs | Page 13 of 30

Q121.
What is the output of this program?
    class box 
    {
        int width;
        int height;
        int length;
        int volume;
        void volume() 
        {
            volume = width * height * length;
        } 
        void volume(int x) 
        {
            volume = x;
        }
    }    
    class Output 
    { 
        public static void main(String args[]) 
        {
            box obj = new box();
            obj.height = 1;
            obj.length = 5;
            obj.width = 5;
            obj.volume(5);
            System.out.println(obj.volume);        
        } 
    }
Discuss
Answer: (b).5
Q122.
What is the output of this program?
    class Output 
    {
        static void main(String args[]) 
        {    
             int x , y = 1;
             x = 10;
             if(x != 10 && x / 0 == 0)
                 System.out.println(y);
             else
                 System.out.println(++y);
        } 
    }
Discuss
Answer: (d).Compilation Error
Q123.
What is the output of this program?
    class area 
    {
        int width;
        int length;
        int height;
        area() 
        {
        width = 5;
        length = 6;
        height = 1;
        }
        void volume() 
        {
             volume = width * height * length;
        } 
    }    
    class cons_method 
    {
        public static void main(String args[]) 
        {
            area obj = new area();
            obj.volume();
            System.out.println(obj.volume);
        } 
    }
Discuss
Answer: (d).30
Q124.
What is the output of this program, Command line execution is done as – “java Output This is a command Line”?
    class Output 
    {
        public static void main(String args[]) 
        {
            System.out.print("args");
        }
    }
Discuss
Answer: (c).This is a command Line
Q125.
What is the output of this program, Command line execution is done as – “java Output command Line 10 A b 4 N”?
    class Output 
    {
        public static void main(String args[]) 
        {
            System.out.print("(int)args[2] * 2");
        }
    }
Discuss
Answer: (c).20
Q126.
What is the output of this program, Command line execution is done as – “java Output command Line 10 A b 4 N”?
    class Output 
    {
        public static void main(String args[]) 
        {
            System.out.print("args[6]");
        }
    }
Discuss
Answer: (d).N
Q127.
What is the output of this program?
    class recursion 
    {
        int fact(int n) 
        {
            int result;
            if (n == 1)
                return 1;
            result = fact(n - 1) * n;
            return result;
        }
    } 
    class Output 
    {
        public static void main(String args[]) 
        {
            recursion obj = new recursion() ;
            System.out.print(obj.fact(5));
        }
    }
Discuss
Answer: (c).120
Q128.
What is the output of this program?
    class recursion 
    {
        int fact(int n) 
        {
            int result;
            if (n == 1)
                return 1;
            result = fact(n - 1) * n;
            return result;
        }
    } 
    class Output 
    {
        public static void main(String args[]) 
        {
            recursion obj = new recursion() ;
            System.out.print(obj.fact(1));
        }
    }
Discuss
Answer: (a).1
Q129.
What is the output of this program?
    class recursion 
    {
        int fact(int n) 
        {
            int result;
            if (n == 1)
                return 1;
            result = fact(n - 1) * n;
            return result;
        }
    } 
    class Output 
    {
        public static void main(String args[]) 
        {
            recursion obj = new recursion() ;
            System.out.print(obj.fact(6));
        }
    }
Discuss
Answer: (d).720
Q130.
Which statement, inserted at line 10, creates an instance of Bar?
class Foo 
{
    class Bar{ }
}
class Test 
{
    public static void main (String [] args) 
    {
        Foo f = new Foo();
        /* Line 10: Missing statement ? */
    }
}
Discuss
Answer: (b).Foo.Bar b = f.new Bar();

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